And simon lazakus



S. KLOTZ AND S. LAZARUS.

SAFETY ENVELOP. APPLICATION FILED AUG.26. 191s.

Patent-ed June 24, 1919.

imrrn smarts SIMON KLOTZ,

OF BIRMINGHAM, ALABAMA, AND SIMON LAZABU'S, OF LOUISVILLE,

KENTUCKY.

SAFETY-ENVELOP.

Specification of Letters Patent.

Patented June 24., 1919.

Application filed August 26, 1918. Serial No. 251,373.

To (all whom it may concern."

Be it known that we, SIMON Know and SIMON LAzARUs, citizens of the United States of America, residing at Birmingham and Louisville, respectively, in the county of Jefferson and States of Alabama and Kentucky, have invented certain new and useful Improvements in Safety-Envelops, of which the following is a specification.

This invention relates to a safety fastening for envelops which is intended not only to make surer and more positive the closing of the envelop but also to design the fastening for the flap of such character that the latter can be easily opened but not without defacing the envelop in such manner as to indicate that it has been tampered with.

The principal object of our invention is to make use of a metallic fastener attached to the back of the envelop and provided with prongs or tips adapted to perforate and be folded down upon the back flap so as to secure the latter while the flap is provided with a gummed portion which can be folded and secured over the bent prongs so as to conceal them and prevent them being tampered with.

It is a further object of our invention that the fastening be so arranged as to facilitate the opening of the envelop and to this end the sides of the flap are preferably left unglued while the center or tip of the flap 1s gummed on its outer surface only so that this gummed tip may be folded back over and form the protection for the metallic fastener. This arrangement enables one to readily grasp the without requiring the envelop.

These and other advantages of our invention will be better understood by reference to the accompanying drawings which illustrate our invention only in its preferred embodiment, and in which Figure 1 shows the back of the envelop with the flap raised to disclose the metallic fastener.

Fig. 2 shows the flap fastened by the metallic fastening; and

Fig; 3 shows the gummed flap pretecting the metallic fasteners,

the cutting or slitting of back flap and tear it open Similar reference numerals refer to similar parts throughout the drawings.

Our invention is applicable to any standard type of envelop such as is formally designated by the numeral 1 in the drawings,

it being understood that our invention is not concerned in the shape, size, or material of the envelop. The back 2 of the envelop is provided with any suitable type of flat metallic fastener 3 which is secured thereto in any suitable manner in position to underlie the back flap 4: when the latter is in closed position. The metallic fastener 2 is provided with tips or points 5 which are adapted to be bent up into position to perforate the flap and be bent down thereover to secure the flap in its closed position, as shown in Fig. 2. The fastener is disposed at such distance from the tip or bottom edge of the back flap 4 that the latter can be folded back over the exposed tips 5 of the metallic fastening to conceal the latter. This concealing or protecting tip of the back flap I have designated as 6 and the outer surface of this tip is gummed at 7 or the gum is so applied to the envelop as to secure this tip of the back flap over the metallic fastening to conceal the latter.

The normal provision of gum along the inside edges of the back flap 4 may be dispensed with if desired or may be retained, such being immaterial for the purposes of this invention. Preferably the lower tip 6 of the normal style back flap is employed as the medium for concealing the metallic fastening, but where desired the back flap of the envelop may be especially designed with our ends in view or may be provided with supplemental o-r ornamental flaps 6 as con ditions may justify.

This invention is not intended to be restricted in scope to the specific embodiments shown, but contemplates such modifications as come within the spirit and scope of the claims.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent, is

1. An envelop comprising a front and a back bod portion, and a back flap adapted to fold own over the back: body portion and having its tip gummel only on its outer surface, and a metallic fastener carried by the back body portion with its prongs o11tturned and disposedtopenetrate the flap immediately above said gumn'led tip and in position to be concealed by the latter' when folded back upon and sealed tothe outer sur face of the flap.

2. An envelop having a back body por tion carrying at the center of its top a Ine tallic fastener, the prongs of which pierce and project outwardly through said body portion, and a triangular shaped back flap, the free tip of Which is left ungumined on its under surface, said metallic fastener being disposed for its prongs to pierce the flap adjacent to said unguinmed tip and in position to concealed by said. tip When folded outwardly back upon itself, and adhesive means to seal said tip in position to conceal the prongs of the metallic fastener, substantially as described. J In testimony whereof We affix our signatiii'e's.

SIMON KLOTZ, SIMON LAZARUS.

Witness N OMIE WELSH".

Copies of patent 'i'nay be otitaiized for five cents each, addressing the Commissioner of Patents,

Washington; D. c. 

